The Gear,spur, cataloged under National Stock Number 3020-00-555-3076, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-555-3076 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Teeth Quantity | 128 |
| Body Style | PLAIN, SOLID |
| Precision Classification | QUALITY NUMBER 6 OR QUALITY NUMBER 7 |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM HUB |
| Nominal Overall Length | 0.422 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.9998 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| End Nominal Diameter | 0.313 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Face Nominal Width | 0.085 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SMA287068 | 5/9 Secondary reference U.S. Government activity |
| SMA287068 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-555-3076 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-555-3076: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Teeth Quantity: 128; Body Style: PLAIN, SOLID; Precision Classification: QUALITY NUMBER 6 OR QUALITY NUMBER 7. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.